linux-kernel - Re: memory leak in pppoe

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Message-ID: <000000000000cf7459058c66dba6@google.com>
Date:   Fri, 28 Jun 2019 11:58:05 -0700
From:   syzbot <syzbot+6bdfd184eac7709e5cc9@...kaller.appspotmail.com>
To:     davem@...emloft.net, linux-kernel@...r.kernel.org,
        mostrows@...thlink.net, netdev@...r.kernel.org,
        syzkaller-bugs@...glegroups.com
Subject: Re: memory leak in pppoe_sendmsg

syzbot has found a reproducer for the following crash on:

HEAD commit:    c84afab0 Merge git://git.kernel.org/pub/scm/linux/kernel/g..
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=164241d9a00000
kernel config:  https://syzkaller.appspot.com/x/.config?x=1db8bd6825f9661c
dashboard link: https://syzkaller.appspot.com/bug?extid=6bdfd184eac7709e5cc9
compiler:       gcc (GCC) 9.0.0 20181231 (experimental)
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=126c5f8da00000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=17cdd4eba00000

IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+6bdfd184eac7709e5cc9@...kaller.appspotmail.com

executing program
BUG: memory leak
unreferenced object 0xffff888115942b00 (size 224):
   comm "syz-executor057", pid 7184, jiffies 4294955398 (age 32.150s)
   hex dump (first 32 bytes):
     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
     00 00 00 00 00 00 00 00 00 08 58 13 81 88 ff ff  ..........X.....
   backtrace:
     [<0000000025f85882>] kmemleak_alloc_recursive  
include/linux/kmemleak.h:43 [inline]
     [<0000000025f85882>] slab_post_alloc_hook mm/slab.h:439 [inline]
     [<0000000025f85882>] slab_alloc_node mm/slab.c:3269 [inline]
     [<0000000025f85882>] kmem_cache_alloc_node+0x153/0x2a0 mm/slab.c:3579
     [<000000005b601dc8>] __alloc_skb+0x6e/0x210 net/core/skbuff.c:194
     [<000000003813d44c>] alloc_skb include/linux/skbuff.h:1054 [inline]
     [<000000003813d44c>] sock_wmalloc+0x4f/0x80 net/core/sock.c:2071
     [<000000003f8b1014>] pppoe_sendmsg+0xd0/0x250  
drivers/net/ppp/pppoe.c:866
     [<000000003841750c>] sock_sendmsg_nosec net/socket.c:646 [inline]
     [<000000003841750c>] sock_sendmsg+0x54/0x70 net/socket.c:665
     [<00000000f75dab14>] ___sys_sendmsg+0x194/0x3c0 net/socket.c:2286
     [<000000004ca9b6e5>] __sys_sendmmsg+0xf4/0x270 net/socket.c:2381
     [<00000000e008d506>] __do_sys_sendmmsg net/socket.c:2410 [inline]
     [<00000000e008d506>] __se_sys_sendmmsg net/socket.c:2407 [inline]
     [<00000000e008d506>] __x64_sys_sendmmsg+0x28/0x30 net/socket.c:2407
     [<00000000f738b123>] do_syscall_64+0x76/0x1a0  
arch/x86/entry/common.c:301
     [<0000000081d80325>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff888113199800 (size 512):
   comm "syz-executor057", pid 7184, jiffies 4294955398 (age 32.150s)
   hex dump (first 32 bytes):
     00 00 aa aa aa aa aa 0a aa aa aa aa aa 0a 88 64  ...............d
     11 00 04 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
   backtrace:
     [<0000000059b95d3a>] kmemleak_alloc_recursive  
include/linux/kmemleak.h:43 [inline]
     [<0000000059b95d3a>] slab_post_alloc_hook mm/slab.h:439 [inline]
     [<0000000059b95d3a>] slab_alloc_node mm/slab.c:3269 [inline]
     [<0000000059b95d3a>] kmem_cache_alloc_node_trace+0x15b/0x2a0  
mm/slab.c:3597
     [<00000000fb30d91c>] __do_kmalloc_node mm/slab.c:3619 [inline]
     [<00000000fb30d91c>] __kmalloc_node_track_caller+0x38/0x50  
mm/slab.c:3634
     [<0000000021df94db>] __kmalloc_reserve.isra.0+0x40/0xb0  
net/core/skbuff.c:138
     [<000000003bd62b3e>] __alloc_skb+0xa0/0x210 net/core/skbuff.c:206
     [<000000003813d44c>] alloc_skb include/linux/skbuff.h:1054 [inline]
     [<000000003813d44c>] sock_wmalloc+0x4f/0x80 net/core/sock.c:2071
     [<000000003f8b1014>] pppoe_sendmsg+0xd0/0x250  
drivers/net/ppp/pppoe.c:866
     [<000000003841750c>] sock_sendmsg_nosec net/socket.c:646 [inline]
     [<000000003841750c>] sock_sendmsg+0x54/0x70 net/socket.c:665
     [<00000000f75dab14>] ___sys_sendmsg+0x194/0x3c0 net/socket.c:2286
     [<000000004ca9b6e5>] __sys_sendmmsg+0xf4/0x270 net/socket.c:2381
     [<00000000e008d506>] __do_sys_sendmmsg net/socket.c:2410 [inline]
     [<00000000e008d506>] __se_sys_sendmmsg net/socket.c:2407 [inline]
     [<00000000e008d506>] __x64_sys_sendmmsg+0x28/0x30 net/socket.c:2407
     [<00000000f738b123>] do_syscall_64+0x76/0x1a0  
arch/x86/entry/common.c:301
     [<0000000081d80325>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff8881130b9e00 (size 224):
   comm "syz-executor057", pid 7184, jiffies 4294955399 (age 32.140s)
   hex dump (first 32 bytes):
     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
     00 00 00 00 00 00 00 00 00 08 58 13 81 88 ff ff  ..........X.....
   backtrace:
     [<0000000025f85882>] kmemleak_alloc_recursive  
include/linux/kmemleak.h:43 [inline]
     [<0000000025f85882>] slab_post_alloc_hook mm/slab.h:439 [inline]
     [<0000000025f85882>] slab_alloc_node mm/slab.c:3269 [inline]
     [<0000000025f85882>] kmem_cache_alloc_node+0x153/0x2a0 mm/slab.c:3579
     [<000000005b601dc8>] __alloc_skb+0x6e/0x210 net/core/skbuff.c:194
     [<000000003813d44c>] alloc_skb include/linux/skbuff.h:1054 [inline]
     [<000000003813d44c>] sock_wmalloc+0x4f/0x80 net/core/sock.c:2071
     [<000000003f8b1014>] pppoe_sendmsg+0xd0/0x250  
drivers/net/ppp/pppoe.c:866
     [<000000003841750c>] sock_sendmsg_nosec net/socket.c:646 [inline]
     [<000000003841750c>] sock_sendmsg+0x54/0x70 net/socket.c:665
     [<00000000f75dab14>] ___sys_sendmsg+0x194/0x3c0 net/socket.c:2286
     [<000000004ca9b6e5>] __sys_sendmmsg+0xf4/0x270 net/socket.c:2381
     [<00000000e008d506>] __do_sys_sendmmsg net/socket.c:2410 [inline]
     [<00000000e008d506>] __se_sys_sendmmsg net/socket.c:2407 [inline]
     [<00000000e008d506>] __x64_sys_sendmmsg+0x28/0x30 net/socket.c:2407
     [<00000000f738b123>] do_syscall_64+0x76/0x1a0  
arch/x86/entry/common.c:301
     [<0000000081d80325>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff8881131dcf00 (size 224):
   comm "syz-executor057", pid 7192, jiffies 4294955408 (age 32.050s)
   hex dump (first 32 bytes):
     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
     00 00 00 00 00 00 00 00 00 20 2d 13 81 88 ff ff  ......... -.....
   backtrace:
     [<0000000025f85882>] kmemleak_alloc_recursive  
include/linux/kmemleak.h:43 [inline]
     [<0000000025f85882>] slab_post_alloc_hook mm/slab.h:439 [inline]
     [<0000000025f85882>] slab_alloc_node mm/slab.c:3269 [inline]
     [<0000000025f85882>] kmem_cache_alloc_node+0x153/0x2a0 mm/slab.c:3579
     [<000000005b601dc8>] __alloc_skb+0x6e/0x210 net/core/skbuff.c:194
     [<000000003813d44c>] alloc_skb include/linux/skbuff.h:1054 [inline]
     [<000000003813d44c>] sock_wmalloc+0x4f/0x80 net/core/sock.c:2071
     [<000000003f8b1014>] pppoe_sendmsg+0xd0/0x250  
drivers/net/ppp/pppoe.c:866
     [<000000003841750c>] sock_sendmsg_nosec net/socket.c:646 [inline]
     [<000000003841750c>] sock_sendmsg+0x54/0x70 net/socket.c:665
     [<00000000f75dab14>] ___sys_sendmsg+0x194/0x3c0 net/socket.c:2286
     [<000000004ca9b6e5>] __sys_sendmmsg+0xf4/0x270 net/socket.c:2381
     [<00000000e008d506>] __do_sys_sendmmsg net/socket.c:2410 [inline]
     [<00000000e008d506>] __se_sys_sendmmsg net/socket.c:2407 [inline]
     [<00000000e008d506>] __x64_sys_sendmmsg+0x28/0x30 net/socket.c:2407
     [<00000000f738b123>] do_syscall_64+0x76/0x1a0  
arch/x86/entry/common.c:301
     [<0000000081d80325>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff888115942b00 (size 224):
   comm "syz-executor057", pid 7184, jiffies 4294955398 (age 32.220s)
   hex dump (first 32 bytes):
     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
     00 00 00 00 00 00 00 00 00 08 58 13 81 88 ff ff  ..........X.....
   backtrace:
     [<0000000025f85882>] kmemleak_alloc_recursive  
include/linux/kmemleak.h:43 [inline]
     [<0000000025f85882>] slab_post_alloc_hook mm/slab.h:439 [inline]
     [<0000000025f85882>] slab_alloc_node mm/slab.c:3269 [inline]
     [<0000000025f85882>] kmem_cache_alloc_node+0x153/0x2a0 mm/slab.c:3579
     [<000000005b601dc8>] __alloc_skb+0x6e/0x210 net/core/skbuff.c:194
     [<000000003813d44c>] alloc_skb include/linux/skbuff.h:1054 [inline]
     [<000000003813d44c>] sock_wmalloc+0x4f/0x80 net/core/sock.c:2071
     [<000000003f8b1014>] pppoe_sendmsg+0xd0/0x250  
drivers/net/ppp/pppoe.c:866
     [<000000003841750c>] sock_sendmsg_nosec net/socket.c:646 [inline]
     [<000000003841750c>] sock_sendmsg+0x54/0x70 net/socket.c:665
     [<00000000f75dab14>] ___sys_sendmsg+0x194/0x3c0 net/socket.c:2286
     [<000000004ca9b6e5>] __sys_sendmmsg+0xf4/0x270 net/socket.c:2381
     [<00000000e008d506>] __do_sys_sendmmsg net/socket.c:2410 [inline]
     [<00000000e008d506>] __se_sys_sendmmsg net/socket.c:2407 [inline]
     [<00000000e008d506>] __x64_sys_sendmmsg+0x28/0x30 net/socket.c:2407
     [<00000000f738b123>] do_syscall_64+0x76/0x1a0  
arch/x86/entry/common.c:301
     [<0000000081d80325>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff888113199800 (size 512):
   comm "syz-executor057", pid 7184, jiffies 4294955398 (age 32.220s)
   hex dump (first 32 bytes):
     00 00 aa aa aa aa aa 0a aa aa aa aa aa 0a 88 64  ...............d
     11 00 04 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
   backtrace:
     [<0000000059b95d3a>] kmemleak_alloc_recursive  
include/linux/kmemleak.h:43 [inline]
     [<0000000059b95d3a>] slab_post_alloc_hook mm/slab.h:439 [inline]
     [<0000000059b95d3a>] slab_alloc_node mm/slab.c:3269 [inline]
     [<0000000059b95d3a>] kmem_cache_alloc_node_trace+0x15b/0x2a0  
mm/slab.c:3597
     [<00000000fb30d91c>] __do_kmalloc_node mm/slab.c:3619 [inline]
     [<00000000fb30d91c>] __kmalloc_node_track_caller+0x38/0x50  
mm/slab.c:3634
     [<0000000021df94db>] __kmalloc_reserve.isra.0+0x40/0xb0  
net/core/skbuff.c:138
     [<000000003bd62b3e>] __alloc_skb+0xa0/0x210 net/core/skbuff.c:206
     [<000000003813d44c>] alloc_skb include/linux/skbuff.h:1054 [inline]
     [<000000003813d44c>] sock_wmalloc+0x4f/0x80 net/core/sock.c:2071
     [<000000003f8b1014>] pppoe_sendmsg+0xd0/0x250  
drivers/net/ppp/pppoe.c:866
     [<000000003841750c>] sock_sendmsg_nosec net/socket.c:646 [inline]
     [<000000003841750c>] sock_sendmsg+0x54/0x70 net/socket.c:665
     [<00000000f75dab14>] ___sys_sendmsg+0x194/0x3c0 net/socket.c:2286
     [<000000004ca9b6e5>] __sys_sendmmsg+0xf4/0x270 net/socket.c:2381
     [<00000000e008d506>] __do_sys_sendmmsg net/socket.c:2410 [inline]
     [<00000000e008d506>] __se_sys_sendmmsg net/socket.c:2407 [inline]
     [<00000000e008d506>] __x64_sys_sendmmsg+0x28/0x30 net/socket.c:2407
     [<00000000f738b123>] do_syscall_64+0x76/0x1a0  
arch/x86/entry/common.c:301
     [<0000000081d80325>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff8881130b9e00 (size 224):
   comm "syz-executor057", pid 7184, jiffies 4294955399 (age 32.210s)
   hex dump (first 32 bytes):
     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
     00 00 00 00 00 00 00 00 00 08 58 13 81 88 ff ff  ..........X.....
   backtrace:
     [<0000000025f85882>] kmemleak_alloc_recursive  
include/linux/kmemleak.h:43 [inline]
     [<0000000025f85882>] slab_post_alloc_hook mm/slab.h:439 [inline]
     [<0000000025f85882>] slab_alloc_node mm/slab.c:3269 [inline]
     [<0000000025f85882>] kmem_cache_alloc_node+0x153/0x2a0 mm/slab.c:3579
     [<000000005b601dc8>] __alloc_skb+0x6e/0x210 net/core/skbuff.c:194
     [<000000003813d44c>] alloc_skb include/linux/skbuff.h:1054 [inline]
     [<000000003813d44c>] sock_wmalloc+0x4f/0x80 net/core/sock.c:2071
     [<000000003f8b1014>] pppoe_sendmsg+0xd0/0x250  
drivers/net/ppp/pppoe.c:866
     [<000000003841750c>] sock_sendmsg_nosec net/socket.c:646 [inline]
     [<000000003841750c>] sock_sendmsg+0x54/0x70 net/socket.c:665
     [<00000000f75dab14>] ___sys_sendmsg+0x194/0x3c0 net/socket.c:2286
     [<000000004ca9b6e5>] __sys_sendmmsg+0xf4/0x270 net/socket.c:2381
     [<00000000e008d506>] __do_sys_sendmmsg net/socket.c:2410 [inline]
     [<00000000e008d506>] __se_sys_sendmmsg net/socket.c:2407 [inline]
     [<00000000e008d506>] __x64_sys_sendmmsg+0x28/0x30 net/socket.c:2407
     [<00000000f738b123>] do_syscall_64+0x76/0x1a0  
arch/x86/entry/common.c:301
     [<0000000081d80325>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff8881131dcf00 (size 224):
   comm "syz-executor057", pid 7192, jiffies 4294955408 (age 32.120s)
   hex dump (first 32 bytes):
     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
     00 00 00 00 00 00 00 00 00 20 2d 13 81 88 ff ff  ......... -.....
   backtrace:
     [<0000000025f85882>] kmemleak_alloc_recursive  
include/linux/kmemleak.h:43 [inline]
     [<0000000025f85882>] slab_post_alloc_hook mm/slab.h:439 [inline]
     [<0000000025f85882>] slab_alloc_node mm/slab.c:3269 [inline]
     [<0000000025f85882>] kmem_cache_alloc_node+0x153/0x2a0 mm/slab.c:3579
     [<000000005b601dc8>] __alloc_skb+0x6e/0x210 net/core/skbuff.c:194
     [<000000003813d44c>] alloc_skb include/linux/skbuff.h:1054 [inline]
     [<000000003813d44c>] sock_wmalloc+0x4f/0x80 net/core/sock.c:2071
     [<000000003f8b1014>] pppoe_sendmsg+0xd0/0x250  
drivers/net/ppp/pppoe.c:866
     [<000000003841750c>] sock_sendmsg_nosec net/socket.c:646 [inline]
     [<000000003841750c>] sock_sendmsg+0x54/0x70 net/socket.c:665
     [<00000000f75dab14>] ___sys_sendmsg+0x194/0x3c0 net/socket.c:2286
     [<000000004ca9b6e5>] __sys_sendmmsg+0xf4/0x270 net/socket.c:2381
     [<00000000e008d506>] __do_sys_sendmmsg net/socket.c:2410 [inline]
     [<00000000e008d506>] __se_sys_sendmmsg net/socket.c:2407 [inline]
     [<00000000e008d506>] __x64_sys_sendmmsg+0x28/0x30 net/socket.c:2407
     [<00000000f738b123>] do_syscall_64+0x76/0x1a0  
arch/x86/entry/common.c:301
     [<0000000081d80325>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff888115942b00 (size 224):
   comm "syz-executor057", pid 7184, jiffies 4294955398 (age 32.290s)
   hex dump (first 32 bytes):
     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
     00 00 00 00 00 00 00 00 00 08 58 13 81 88 ff ff  ..........X.....
   backtrace:
     [<0000000025f85882>] kmemleak_alloc_recursive  
include/linux/kmemleak.h:43 [inline]
     [<0000000025f85882>] slab_post_alloc_hook mm/slab.h:439 [inline]
     [<0000000025f85882>] slab_alloc_node mm/slab.c:3269 [inline]
     [<0000000025f85882>] kmem_cache_alloc_node+0x153/0x2a0 mm/slab.c:3579
     [<000000005b601dc8>] __alloc_skb+0x6e/0x210 net/core/skbuff.c:194
     [<000000003813d44c>] alloc_skb include/linux/skbuff.h:1054 [inline]
     [<000000003813d44c>] sock_wmalloc+0x4f/0x80 net/core/sock.c:2071
     [<000000003f8b1014>] pppoe_sendmsg+0xd0/0x250  
drivers/net/ppp/pppoe.c:866
     [<000000003841750c>] sock_sendmsg_nosec net/socket.c:646 [inline]
     [<000000003841750c>] sock_sendmsg+0x54/0x70 net/socket.c:665
     [<00000000f75dab14>] ___sys_sendmsg+0x194/0x3c0 net/socket.c:2286
     [<000000004ca9b6e5>] __sys_sendmmsg+0xf4/0x270 net/socket.c:2381
     [<00000000e008d506>] __do_sys_sendmmsg net/socket.c:2410 [inline]
     [<00000000e008d506>] __se_sys_sendmmsg net/socket.c:2407 [inline]
     [<00000000e008d506>] __x64_sys_sendmmsg+0x28/0x30 net/socket.c:2407
     [<00000000f738b123>] do_syscall_64+0x76/0x1a0  
arch/x86/entry/common.c:301
     [<0000000081d80325>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff888113199800 (size 512):
   comm "syz-executor057", pid 7184, jiffies 4294955398 (age 32.290s)
   hex dump (first 32 bytes):
     00 00 aa aa aa aa aa 0a aa aa aa aa aa 0a 88 64  ...............d
     11 00 04 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
   backtrace:
     [<0000000059b95d3a>] kmemleak_alloc_recursive  
include/linux/kmemleak.h:43 [inline]
     [<0000000059b95d3a>] slab_post_alloc_hook mm/slab.h:439 [inline]
     [<0000000059b95d3a>] slab_alloc_node mm/slab.c:3269 [inline]
     [<0000000059b95d3a>] kmem_cache_alloc_node_trace+0x15b/0x2a0  
mm/slab.c:3597
     [<00000000fb30d91c>] __do_kmalloc_node mm/slab.c:3619 [inline]
     [<00000000fb30d91c>] __kmalloc_node_track_caller+0x38/0x50  
mm/slab.c:3634
     [<0000000021df94db>] __kmalloc_reserve.isra.0+0x40/0xb0  
net/core/skbuff.c:138
     [<000000003bd62b3e>] __alloc_skb+0xa0/0x210 net/core/skbuff.c:206
     [<000000003813d44c>] alloc_skb include/linux/skbuff.h:1054 [inline]
     [<000000003813d44c>] sock_wmalloc+0x4f/0x80 net/core/sock.c:2071
     [<000000003f8b1014>] pppoe_sendmsg+0xd0/0x250  
drivers/net/ppp/pppoe.c:866
     [<000000003841750c>] sock_sendmsg_nosec net/socket.c:646 [inline]
     [<000000003841750c>] sock_sendmsg+0x54/0x70 net/socket.c:665
     [<00000000f75dab14>] ___sys_sendmsg+0x194/0x3c0 net/socket.c:2286
     [<000000004ca9b6e5>] __sys_sendmmsg+0xf4/0x270 net/socket.c:2381
     [<00000000e008d506>] __do_sys_sendmmsg net/socket.c:2410 [inline]
     [<00000000e008d506>] __se_sys_sendmmsg net/socket.c:2407 [inline]
     [<00000000e008d506>] __x64_sys_sendmmsg+0x28/0x30 net/socket.c:2407
     [<00000000f738b123>] do_syscall_64+0x76/0x1a0  
arch/x86/entry/common.c:301
     [<0000000081d80325>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff8881130b9e00 (size 224):
   comm "syz-executor057", pid 7184, jiffies 4294955399 (age 32.280s)
   hex dump (first 32 bytes):
     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
     00 00 00 00 00 00 00 00 00 08 58 13 81 88 ff ff  ..........X.....
   backtrace:
     [<0000000025f85882>] kmemleak_alloc_recursive  
include/linux/kmemleak.h:43 [inline]
     [<0000000025f85882>] slab_post_alloc_hook mm/slab.h:439 [inline]
     [<0000000025f85882>] slab_alloc_node mm/slab.c:3269 [inline]
     [<0000000025f85882>] kmem_cache_alloc_node+0x153/0x2a0 mm/slab.c:3579
     [<000000005b601dc8>] __alloc_skb+0x6e/0x210 net/core/skbuff.c:194
     [<000000003813d44c>] alloc_skb include/linux/skbuff.h:1054 [inline]
     [<000000003813d44c>] sock_wmalloc+0x4f/0x80 net/core/sock.c:2071
     [<000000003f8b1014>] pppoe_sendmsg+0xd0/0x250  
drivers/net/ppp/pppoe.c:866
     [<000000003841750c>] sock_sendmsg_nosec net/socket.c:646 [inline]
     [<000000003841750c>] sock_sendmsg+0x54/0x70 net/socket.c:665
     [<00000000f75dab14>] ___sys_sendmsg+0x194/0x3c0 net/socket.c:2286
     [<000000004ca9b6e5>] __sys_sendmmsg+0xf4/0x270 net/socket.c:2381
     [<00000000e008d506>] __do_sys_sendmmsg net/socket.c:2410 [inline]
     [<00000000e008d506>] __se_sys_sendmmsg net/socket.c:2407 [inline]
     [<00000000e008d506>] __x64_sys_sendmmsg+0x28/0x30 net/socket.c:2407
     [<00000000f738b123>] do_syscall_64+0x76/0x1a0  
arch/x86/entry/common.c:301
     [<0000000081d80325>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff8881131dcf00 (size 224):
   comm "syz-executor057", pid 7192, jiffies 4294955408 (age 32.190s)
   hex dump (first 32 bytes):
     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
     00 00 00 00 00 00 00 00 00 20 2d 13 81 88 ff ff  ......... -.....
   backtrace:
     [<0000000025f85882>] kmemleak_alloc_recursive  
include/linux/kmemleak.h:43 [inline]
     [<0000000025f85882>] slab_post_alloc_hook mm/slab.h:439 [inline]
     [<0000000025f85882>] slab_alloc_node mm/slab.c:3269 [inline]
     [<0000000025f85882>] kmem_cache_alloc_node+0x153/0x2a0 mm/slab.c:3579
     [<000000005b601dc8>] __alloc_skb+0x6e/0x210 net/core/skbuff.c:194
     [<000000003813d44c>] alloc_skb include/linux/skbuff.h:1054 [inline]
     [<000000003813d44c>] sock_wmalloc+0x4f/0x80 net/core/sock.c:2071
     [<000000003f8b1014>] pppoe_sendmsg+0xd0/0x250  
drivers/net/ppp/pppoe.c:866
     [<000000003841750c>] sock_sendmsg_nosec net/socket.c:646 [inline]
     [<000000003841750c>] sock_sendmsg+0x54/0x70 net/socket.c:665
     [<00000000f75dab14>] ___sys_sendmsg+0x194/0x3c0 net/socket.c:2286
     [<000000004ca9b6e5>] __sys_sendmmsg+0xf4/0x270 net/socket.c:2381
     [<00000000e008d506>] __do_sys_sendmmsg net/socket.c:2410 [inline]
     [<00000000e008d506>] __se_sys_sendmmsg net/socket.c:2407 [inline]
     [<00000000e008d506>] __x64_sys_sendmmsg+0x28/0x30 net/socket.c:2407
     [<00000000f738b123>] do_syscall_64+0x76/0x1a0  
arch/x86/entry/common.c:301
     [<0000000081d80325>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff888115942b00 (size 224):
   comm "syz-executor057", pid 7184, jiffies 4294955398 (age 32.350s)
   hex dump (first 32 bytes):
     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
     00 00 00 00 00 00 00 00 00 08 58 13 81 88 ff ff  ..........X.....
   backtrace:
     [<0000000025f85882>] kmemleak_alloc_recursive  
include/linux/kmemleak.h:43 [inline]
     [<0000000025f85882>] slab_post_alloc_hook mm/slab.h:439 [inline]
     [<0000000025f85882>] slab_alloc_node mm/slab.c:3269 [inline]
     [<0000000025f85882>] kmem_cache_alloc_node+0x153/0x2a0 mm/slab.c:3579
     [<000000005b601dc8>] __alloc_skb+0x6e/0x210 net/core/skbuff.c:194
     [<000000003813d44c>] alloc_skb include/linux/skbuff.h:1054 [inline]
     [<000000003813d44c>] sock_wmalloc+0x4f/0x80 net/core/sock.c:2071
     [<000000003f8b1014>] pppoe_sendmsg+0xd0/0x250  
drivers/net/ppp/pppoe.c:866
     [<000000003841750c>] sock_sendmsg_nosec net/socket.c:646 [inline]
     [<000000003841750c>] sock_sendmsg+0x54/0x70 net/socket.c:665
     [<00000000f75dab14>] ___sys_sendmsg+0x194/0x3c0 net/socket.c:2286
     [<000000004ca9b6e5>] __sys_sendmmsg+0xf4/0x270 net/socket.c:2381
     [<00000000e008d506>] __do_sys_sendmmsg net/socket.c:2410 [inline]
     [<00000000e008d506>] __se_sys_sendmmsg net/socket.c:2407 [inline]
     [<00000000e008d506>] __x64_sys_sendmmsg+0x28/0x30 net/socket.c:2407
     [<00000000f738b123>] do_syscall_64+0x76/0x1a0  
arch/x86/entry/common.c:301
     [<0000000081d80325>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff888113199800 (size 512):
   comm "syz-executor057", pid 7184, jiffies 4294955398 (age 32.350s)
   hex dump (first 32 bytes):
     00 00 aa aa aa aa aa 0a aa aa aa aa aa 0a 88 64  ...............d
     11 00 04 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
   backtrace:
     [<0000000059b95d3a>] kmemleak_alloc_recursive  
include/linux/kmemleak.h:43 [inline]
     [<0000000059b95d3a>] slab_post_alloc_hook mm/slab.h:439 [inline]
     [<0000000059b95d3a>] slab_alloc_node mm/slab.c:3269 [inline]
     [<0000000059b95d3a>] kmem_cache_alloc_node_trace+0x15b/0x2a0  
mm/slab.c:3597
     [<00000000fb30d91c>] __do_kmalloc_node mm/slab.c:3619 [inline]
     [<00000000fb30d91c>] __kmalloc_node_track_caller+0x38/0x50  
mm/slab.c:3634
     [<0000000021df94db>] __kmalloc_reserve.isra.0+0x40/0xb0  
net/core/skbuff.c:138
     [<000000003bd62b3e>] __alloc_skb+0xa0/0x210 net/core/skbuff.c:206
     [<000000003813d44c>] alloc_skb include/linux/skbuff.h:1054 [inline]
     [<000000003813d44c>] sock_wmalloc+0x4f/0x80 net/core/sock.c:2071
     [<000000003f8b1014>] pppoe_sendmsg+0xd0/0x250  
drivers/net/ppp/pppoe.c:866
     [<000000003841750c>] sock_sendmsg_nosec net/socket.c:646 [inline]
     [<000000003841750c>] sock_sendmsg+0x54/0x70 net/socket.c:665
     [<00000000f75dab14>] ___sys_sendmsg+0x194/0x3c0 net/socket.c:2286
     [<000000004ca9b6e5>] __sys_sendmmsg+0xf4/0x270 net/socket.c:2381
     [<00000000e008d506>] __do_sys_sendmmsg net/socket.c:2410 [inline]
     [<00000000e008d506>] __se_sys_sendmmsg net/socket.c:2407 [inline]
     [<00000000e008d506>] __x64_sys_sendmmsg+0x28/0x30 net/socket.c:2407
     [<00000000f738b123>] do_syscall_64+0x76/0x1a0  
arch/x86/entry/common.c:301
     [<0000000081d80325>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff8881130b9e00 (size 224):
   comm "syz-executor057", pid 7184, jiffies 4294955399 (age 32.340s)
   hex dump (first 32 bytes):
     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
     00 00 00 00 00 00 00 00 00 08 58 13 81 88 ff ff  ..........X.....
   backtrace:
     [<0000000025f85882>] kmemleak_alloc_recursive  
include/linux/kmemleak.h:43 [inline]
     [<0000000025f85882>] slab_post_alloc_hook mm/slab.h:439 [inline]
     [<0000000025f85882>] slab_alloc_node mm/slab.c:3269 [inline]
     [<0000000025f85882>] kmem_cache_alloc_node+0x153/0x2a0 mm/slab.c:3579
     [<000000005b601dc8>] __alloc_skb+0x6e/0x210 net/core/skbuff.c:194
     [<000000003813d44c>] alloc_skb include/linux/skbuff.h:1054 [inline]
     [<000000003813d44c>] sock_wmalloc+0x4f/0x80 net/core/sock.c:2071
     [<000000003f8b1014>] pppoe_sendmsg+0xd0/0x250  
drivers/net/ppp/pppoe.c:866
     [<000000003841750c>] sock_sendmsg_nosec net/socket.c:646 [inline]
     [<000000003841750c>] sock_sendmsg+0x54/0x70 net/socket.c:665
     [<00000000f75dab14>] ___sys_sendmsg+0x194/0x3c0 net/socket.c:2286
     [<000000004ca9b6e5>] __sys_sendmmsg+0xf4/0x270 net/socket.c:2381
     [<00000000e008d506>] __do_sys_sendmmsg net/socket.c:2410 [inline]
     [<00000000e008d506>] __se_sys_sendmmsg net/socket.c:2407 [inline]
     [<00000000e008d506>] __x64_sys_sendmmsg+0x28/0x30 net/socket.c:2407
     [<00000000f738b123>] do_syscall_64+0x76/0x1a0  
arch/x86/entry/common.c:301
     [<0000000081d80325>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff8881131dcf00 (size 224):
   comm "syz-executor057", pid 7192, jiffies 4294955408 (age 32.250s)
   hex dump (first 32 bytes):
     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
     00 00 00 00 00 00 00 00 00 20 2d 13 81 88 ff ff  ......... -.....
   backtrace:
     [<0000000025f85882>] kmemleak_alloc_recursive  
include/linux/kmemleak.h:43 [inline]
     [<0000000025f85882>] slab_post_alloc_hook mm/slab.h:439 [inline]
     [<0000000025f85882>] slab_alloc_node mm/slab.c:3269 [inline]
     [<0000000025f85882>] kmem_cache_alloc_node+0x153/0x2a0 mm/slab.c:3579
     [<000000005b601dc8>] __alloc_skb+0x6e/0x210 net/core/skbuff.c:194
     [<000000003813d44c>] alloc_skb include/linux/skbuff.h:1054 [inline]
     [<000000003813d44c>] sock_wmalloc+0x4f/0x80 net/core/sock.c:2071
     [<000000003f8b1014>] pppoe_sendmsg+0xd0/0x250  
drivers/net/ppp/pppoe.c:866
     [<000000003841750c>] sock_sendmsg_nosec net/socket.c:646 [inline]
     [<000000003841750c>] sock_sendmsg+0x54/0x70 net/socket.c:665
     [<00000000f75dab14>] ___sys_sendmsg+0x194/0x3c0 net/socket.c:2286
     [<000000004ca9b6e5>] __sys_sendmmsg+0xf4/0x270 net/socket.c:2381
     [<00000000e008d506>] __do_sys_sendmmsg net/socket.c:2410 [inline]
     [<00000000e008d506>] __se_sys_sendmmsg net/socket.c:2407 [inline]
     [<00000000e008d506>] __x64_sys_sendmmsg+0x28/0x30 net/socket.c:2407
     [<00000000f738b123>] do_syscall_64+0x76/0x1a0  
arch/x86/entry/common.c:301
     [<0000000081d80325>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff888115942b00 (size 224):
   comm "syz-executor057", pid 7184, jiffies 4294955398 (age 32.420s)
   hex dump (first 32 bytes):
     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
     00 00 00 00 00 00 00 00 00 08 58 13 81 88 ff ff  ..........X.....
   backtrace:
     [<0000000025f85882>] kmemleak_alloc_recursive  
include/linux/kmemleak.h:43 [inline]
     [<0000000025f85882>] slab_post_alloc_hook mm/slab.h:439 [inline]
     [<0000000025f85882>] slab_alloc_node mm/slab.c:3269 [inline]
     [<0000000025f85882>] kmem_cache_alloc_node+0x153/0x2a0 mm/slab.c:3579
     [<000000005b601dc8>] __alloc_skb+0x6e/0x210 net/core/skbuff.c:194
     [<000000003813d44c>] alloc_skb include/linux/skbuff.h:1054 [inline]
     [<000000003813d44c>] sock_wmalloc+0x4f/0x80 net/core/sock.c:2071
     [<000000003f8b1014>] pppoe_sendmsg+0xd0/0x250  
drivers/net/ppp/pppoe.c:866
     [<000000003841750c>] sock_sendmsg_nosec net/socket.c:646 [inline]
     [<000000003841750c>] sock_sendmsg+0x54/0x70 net/socket.c:665
     [<00000000f75dab14>] ___sys_sendmsg+0x194/0x3c0 net/socket.c:2286
     [<000000004ca9b6e5>] __sys_sendmmsg+0xf4/0x270 net/socket.c:2381
     [<00000000e008d506>] __do_sys_sendmmsg net/socket.c:2410 [inline]
     [<00000000e008d506>] __se_sys_sendmmsg net/socket.c:2407 [inline]
     [<00000000e008d506>] __x64_sys_sendmmsg+0x28/0x30 net/socket.c:2407
     [<00000000f738b123>] do_syscall_64+0x76/0x1a0  
arch/x86/entry/common.c:301
     [<0000000081d80325>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff888113199800 (size 512):
   comm "syz-executor057", pid 7184, jiffies 4294955398 (age 32.420s)
   hex dump (first 32 bytes):
     00 00 aa aa aa aa aa 0a aa aa aa aa aa 0a 88 64  ...............d
     11 00 04 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
   backtrace:
     [<0000000059b95d3a>] kmemleak_alloc_recursive  
include/linux/kmemleak.h:43 [inline]
     [<0000000059b95d3a>] slab_post_alloc_hook mm/slab.h:439 [inline]
     [<0000000059b95d3a>] slab_alloc_node mm/slab.c:3269 [inline]
     [<0000000059b95d3a>] kmem_cache_alloc_node_trace+0x15b/0x2a0  
mm/slab.c:3597
     [<00000000fb30d91c>] __do_kmalloc_node mm/slab.c:3619 [inline]
     [<00000000fb30d91c>] __kmalloc_node_track_caller+0x38/0x50  
mm/slab.c:3634
     [<0000000021df94db>] __kmalloc_reserve.isra.0+0x40/0xb0  
net/core/skbuff.c:138
     [<000000003bd62b3e>] __alloc_skb+0xa0/0x210 net/core/skbuff.c:206
     [<000000003813d44c>] alloc_skb include/linux/skbuff.h:1054 [inline]
     [<000000003813d44c>] sock_wmalloc+0x4f/0x80 net/core/sock.c:2071
     [<000000003f8b1014>] pppoe_sendmsg+0xd0/0x250  
drivers/net/ppp/pppoe.c:866
     [<000000003841750c>] sock_sendmsg_nosec net/socket.c:646 [inline]
     [<000000003841750c>] sock_sendmsg+0x54/0x70 net/socket.c:665
     [<00000000f75dab14>] ___sys_sendmsg+0x194/0x3c0 net/socket.c:2286
     [<000000004ca9b6e5>] __sys_sendmmsg+0xf4/0x270 net/socket.c:2381
     [<00000000e008d506>] __do_sys_sendmmsg net/socket.c:2410 [inline]
     [<00000000e008d506>] __se_sys_sendmmsg net/socket.c:2407 [inline]
     [<00000000e008d506>] __x64_sys_sendmmsg+0x28/0x30 net/socket.c:2407
     [<00000000f738b123>] do_syscall_64+0x76/0x1a0  
arch/x86/entry/common.c:301
     [<0000000081d80325>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff8881130b9e00 (size 224):
   comm "syz-executor057", pid 7184, jiffies 4294955399 (age 32.410s)
   hex dump (first 32 bytes):
     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
     00 00 00 00 00 00 00 00 00 08 58 13 81 88 ff ff  ..........X.....
   backtrace:
     [<0000000025f85882>] kmemleak_alloc_recursive  
include/linux/kmemleak.h:43 [inline]
     [<0000000025f85882>] slab_post_alloc_hook mm/slab.h:439 [inline]
     [<0000000025f85882>] slab_alloc_node mm/slab.c:3269 [inline]
     [<0000000025f85882>] kmem_cache_alloc_node+0x153/0x2a0 mm/slab.c:3579
     [<000000005b601dc8>] __alloc_skb+0x6e/0x210 net/core/skbuff.c:194
     [<000000003813d44c>] alloc_skb include/linux/skbuff.h:1054 [inline]
     [<000000003813d44c>] sock_wmalloc+0x4f/0x80 net/core/sock.c:2071
     [<000000003f8b1014>] pppoe_sendmsg+0xd0/0x250  
drivers/net/ppp/pppoe.c:866
     [<000000003841750c>] sock_sendmsg_nosec net/socket.c:646 [inline]
     [<000000003841750c>] sock_sendmsg+0x54/0x70 net/socket.c:665
     [<00000000f75dab14>] ___sys_sendmsg+0x194/0x3c0 net/socket.c:2286
     [<000000004ca9b6e5>] __sys_sendmmsg+0xf4/0x270 net/socket.c:2381
     [<00000000e008d506>] __do_sys_sendmmsg net/socket.c:2410 [inline]
     [<00000000e008d506>] __se_sys_sendmmsg net/socket.c:2407 [inline]
     [<00000000e008d506>] __x64_sys_sendmmsg+0x28/0x30 net/socket.c:2407
     [<00000000f738b123>] do_syscall_64+0x76/0x1a0  
arch/x86/entry/common.c:301
     [<0000000081d80325>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff8881131dcf00 (size 224):
   comm "syz-executor057", pid 7192, jiffies 4294955408 (age 32.320s)
   hex dump (first 32 bytes):
     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
     00 00 00 00 00 00 00 00 00 20 2d 13 81 88 ff ff  ......... -.....
   backtrace:
     [<0000000025f85882>] kmemleak_alloc_recursive  
include/linux/kmemleak.h:43 [inline]
     [<0000000025f85882>] slab_post_alloc_hook mm/slab.h:439 [inline]
     [<0000000025f85882>] slab_alloc_node mm/slab.c:3269 [inline]
     [<0000000025f85882>] kmem_cache_alloc_node+0x153/0x2a0 mm/slab.c:3579
     [<000000005b601dc8>] __alloc_skb+0x6e/0x210 net/core/skbuff.c:194
     [<000000003813d44c>] alloc_skb include/linux/skbuff.h:1054 [inline]
     [<000000003813d44c>] sock_wmalloc+0x4f/0x80 net/core/sock.c:2071
     [<000000003f8b1014>] pppoe_sendmsg+0xd0/0x250  
drivers/net/ppp/pppoe.c:866
     [<000000003841750c>] sock_sendmsg_nosec net/socket.c:646 [inline]
     [<000000003841750c>] sock_sendmsg+0x54/0x70 net/socket.c:665
     [<00000000f75dab14>] ___sys_sendmsg+0x194/0x3c0 net/socket.c:2286
     [<000000004ca9b6e5>] __sys_sendmmsg+0xf4/0x270 net/socket.c:2381
     [<00000000e008d506>] __do_sys_sendmmsg net/socket.c:2410 [inline]
     [<00000000e008d506>] __se_sys_sendmmsg net/socket.c:2407 [inline]
     [<00000000e008d506>] __x64_sys_sendmmsg+0x28/0x30 net/socket.c:2407
     [<00000000f738b123>] do_syscall_64+0x76/0x1a0  
arch/x86/entry/common.c:301
     [<0000000081d80325>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff888115942b00 (size 224):
   comm "syz-executor057", pid 7184, jiffies 4294955398 (age 32.480s)
   hex dump (first 32 bytes):
     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
     00 00 00 00 00 00 00 00 00 08 58 13 81 88 ff ff  ..........X.....
   backtrace:
     [<0000000025f85882>] kmemleak_alloc_recursive  
include/linux/kmemleak.h:43 [inline]
     [<0000000025f85882>] slab_post_alloc_hook mm/slab.h:439 [inline]
     [<0000000025f85882>] slab_alloc_node mm/slab.c:3269 [inline]
     [<0000000025f85882>] kmem_cache_alloc_node+0x153/0x2a0 mm/slab.c:3579
     [<000000005b601dc8>] __alloc_skb+0x6e/0x210 net/core/skbuff.c:194
     [<000000003813d44c>] alloc_skb include/linux/skbuff.h:1054 [inline]
     [<000000003813d44c>] sock_wmalloc+0x4f/0x80 net/core/sock.c:2071
     [<000000003f8b1014>] pppoe_sendmsg+0xd0/0x250  
drivers/net/ppp/pppoe.c:866
     [<000000003841750c>] sock_sendmsg_nosec net/socket.c:646 [inline]
     [<000000003841750c>] sock_sendmsg+0x54/0x70 net/socket.c:665
     [<00000000f75dab14>] ___sys_sendmsg+0x194/0x3c0 net/socket.c:2286
     [<000000004ca9b6e5>] __sys_sendmmsg+0xf4/0x270 net/socket.c:2381
     [<00000000e008d506>] __do_sys_sendmmsg net/socket.c:2410 [inline]
     [<00000000e008d506>] __se_sys_sendmmsg net/socket.c:2407 [inline]
     [<00000000e008d506>] __x64_sys_sendmmsg+0x28/0x30 net/socket.c:2407
     [<00000000f738b123>] do_syscall_64+0x76/0x1a0  
arch/x86/entry/common.c:301
     [<0000000081d80325>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff888113199800 (size 512):
   comm "syz-executor057", pid 7184, jiffies 4294955398 (age 32.480s)
   hex dump (first 32 bytes):
     00 00 aa aa aa aa aa 0a aa aa aa aa aa 0a 88 64  ...............d
     11 00 04 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
   backtrace:
     [<0000000059b95d3a>] kmemleak_alloc_recursive  
include/linux/kmemleak.h:43 [inline]
     [<0000000059b95d3a>] slab_post_alloc_hook mm/slab.h:439 [inline]
     [<0000000059b95d3a>] slab_alloc_node mm/slab.c:3269 [inline]
     [<0000000059b95d3a>] kmem_cache_alloc_node_trace+0x15b/0x2a0  
mm/slab.c:3597
     [<00000000fb30d91c>] __do_kmalloc_node mm/slab.c:3619 [inline]
     [<00000000fb30d91c>] __kmalloc_node_track_caller+0x38/0x50  
mm/slab.c:3634
     [<0000000021df94db>] __kmalloc_reserve.isra.0+0x40/0xb0  
net/core/skbuff.c:138
     [<000000003bd62b3e>] __alloc_skb+0xa0/0x210 net/core/skbuff.c:206
     [<000000003813d44c>] alloc_skb include/linux/skbuff.h:1054 [inline]
     [<000000003813d44c>] sock_wmalloc+0x4f/0x80 net/core/sock.c:2071
     [<000000003f8b1014>] pppoe_sendmsg+0xd0/0x250  
drivers/net/ppp/pppoe.c:866
     [<000000003841750c>] sock_sendmsg_nosec net/socket.c:646 [inline]
     [<000000003841750c>] sock_sendmsg+0x54/0x70 net/socket.c:665
     [<00000000f75dab14>] ___sys_sendmsg+0x194/0x3c0 net/socket.c:2286
     [<000000004ca9b6e5>] __sys_sendmmsg+0xf4/0x270 net/socket.c:2381
     [<00000000e008d506>] __do_sys_sendmmsg net/socket.c:2410 [inline]
     [<00000000e008d506>] __se_sys_sendmmsg net/socket.c:2407 [inline]
     [<00000000e008d506>] __x64_sys_sendmmsg+0x28/0x30 net/socket.c:2407
     [<00000000f738b123>] do_syscall_64+0x76/0x1a0  
arch/x86/entry/common.c:301
     [<0000000081d80325>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff8881130b9e00 (size 224):
   comm "syz-executor057", pid 7184, jiffies 4294955399 (age 32.470s)
   hex dump (first 32 bytes):
     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
     00 00 00 00 00 00 00 00 00 08 58 13 81 88 ff ff  ..........X.....
   backtrace:
     [<0000000025f85882>] kmemleak_alloc_recursive  
include/linux/kmemleak.h:43 [inline]
     [<0000000025f85882>] slab_post_alloc_hook mm/slab.h:439 [inline]
     [<0000000025f85882>] slab_alloc_node mm/slab.c:3269 [inline]
     [<0000000025f85882>] kmem_cache_alloc_node+0x153/0x2a0 mm/slab.c:3579
     [<000000005b601dc8>] __alloc_skb+0x6e/0x210 net/core/skbuff.c:194
     [<000000003813d44c>] alloc_skb include/linux/skbuff.h:1054 [inline]
     [<000000003813d44c>] sock_wmalloc+0x4f/0x80 net/core/sock.c:2071
     [<000000003f8b1014>] pppoe_sendmsg+0xd0/0x250  
drivers/net/ppp/pppoe.c:866
     [<000000003841750c>] sock_sendmsg_nosec net/socket.c:646 [inline]
     [<000000003841750c>] sock_sendmsg+0x54/0x70 net/socket.c:665
     [<00000000f75dab14>] ___sys_sendmsg+0x194/0x3c0 net/socket.c:2286
     [<000000004ca9b6e5>] __sys_sendmmsg+0xf4/0x270 net/socket.c:2381
     [<00000000e008d506>] __do_sys_sendmmsg net/socket.c:2410 [inline]
     [<00000000e008d506>] __se_sys_sendmmsg net/socket.c:2407 [inline]
     [<00000000e008d506>] __x64_sys_sendmmsg+0x28/0x30 net/socket.c:2407
     [<00000000f738b123>] do_syscall_64+0x76/0x1a0  
arch/x86/entry/common.c:301
     [<0000000081d80325>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff8881131dcf00 (size 224):
   comm "syz-executor057", pid 7192, jiffies 4294955408 (age 32.380s)
   hex dump (first 32 bytes):
     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
     00 00 00 00 00 00 00 00 00 20 2d 13 81 88 ff ff  ......... -.....
   backtrace:
     [<0000000025f85882>] kmemleak_alloc_recursive  
include/linux/kmemleak.h:43 [inline]
     [<0000000025f85882>] slab_post_alloc_hook mm/slab.h:439 [inline]
     [<0000000025f85882>] slab_alloc_node mm/slab.c:3269 [inline]
     [<0000000025f85882>] kmem_cache_alloc_node+0x153/0x2a0 mm/slab.c:3579
     [<000000005b601dc8>] __alloc_skb+0x6e/0x210 net/core/skbuff.c:194
     [<000000003813d44c>] alloc_skb include/linux/skbuff.h:1054 [inline]
     [<000000003813d44c>] sock_wmalloc+0x4f/0x80 net/core/sock.c:2071
     [<000000003f8b1014>] pppoe_sendmsg+0xd0/0x250  
drivers/net/ppp/pppoe.c:866
     [<000000003841750c>] sock_sendmsg_nosec net/socket.c:646 [inline]
     [<000000003841750c>] sock_sendmsg+0x54/0x70 net/socket.c:665
     [<00000000f75dab14>] ___sys_sendmsg+0x194/0x3c0 net/socket.c:2286
     [<000000004ca9b6e5>] __sys_sendmmsg+0xf4/0x270 net/socket.c:2381
     [<00000000e008d506>] __do_sys_sendmmsg net/socket.c:2410 [inline]
     [<00000000e008d506>] __se_sys_sendmmsg net/socket.c:2407 [inline]
     [<00000000e008d506>] __x64_sys_sendmmsg+0x28/0x30 net/socket.c:2407
     [<00000000f738b123>] do_syscall_64+0x76/0x1a0  
arch/x86/entry/common.c:301
     [<0000000081d80325>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff888115942b00 (size 224):
   comm "syz-executor057", pid 7184, jiffies 4294955398 (age 32.550s)
   hex dump (first 32 bytes):
     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
     00 00 00 00 00 00 00 00 00 08 58 13 81 88 ff ff  ..........X.....
   backtrace:
     [<0000000025f85882>] kmemleak_alloc_recursive  
include/linux/kmemleak.h:43 [inline]
     [<0000000025f85882>] slab_post_alloc_hook mm/slab.h:439 [inline]
     [<0000000025f85882>] slab_alloc_node mm/slab.c:3269 [inline]
     [<0000000025f85882>] kmem_cache_alloc_node+0x153/0x2a0 mm/slab.c:3579
     [<000000005b601dc8>] __alloc_skb+0x6e/0x210 net/core/skbuff.c:194
     [<000000003813d44c>] alloc_skb include/linux/skbuff.h:1054 [inline]
     [<000000003813d44c>] sock_wmalloc+0x4f/0x80 net/core/sock.c:2071
     [<000000003f8b1014>] pppoe_sendmsg+0xd0/0x250  
drivers/net/ppp/pppoe.c:866
     [<000000003841750c>] sock_sendmsg_nosec net/socket.c:646 [inline]
     [<000000003841750c>] sock_sendmsg+0x54/0x70 net/socket.c:665
     [<00000000f75dab14>] ___sys_sendmsg+0x194/0x3c0 net/socket.c:2286
     [<000000004ca9b6e5>] __sys_sendmmsg+0xf4/0x270 net/socket.c:2381
     [<00000000e008d506>] __do_sys_sendmmsg net/socket.c:2410 [inline]
     [<00000000e008d506>] __se_sys_sendmmsg net/socket.c:2407 [inline]
     [<00000000e008d506>] __x64_sys_sendmmsg+0x28/0x30 net/socket.c:2407
     [<00000000f738b123>] do_syscall_64+0x76/0x1a0  
arch/x86/entry/common.c:301
     [<0000000081d80325>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff888113199800 (size 512):
   comm "syz-executor057", pid 7184, jiffies 4294955398 (age 32.550s)
   hex dump (first 32 bytes):
     00 00 aa aa aa aa aa 0a aa aa aa aa aa 0a 88 64  ...............d
     11 00 04 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
   backtrace:
     [<0000000059b95d3a>] kmemleak_alloc_recursive  
include/linux/kmemleak.h:43 [inline]
     [<0000000059b95d3a>] slab_post_alloc_hook mm/slab.h:439 [inline]
     [<0000000059b95d3a>] slab_alloc_node mm/slab.c:3269 [inline]
     [<0000000059b95d3a>] kmem_cache_alloc_node_trace+0x15b/0x2a0  
mm/slab.c:3597
     [<00000000fb30d91c>] __do_kmalloc_node mm/slab.c:3619 [inline]
     [<00000000fb30d91c>] __kmalloc_node_track_caller+0x38/0x50  
mm/slab.c:3634
     [<0000000021df94db>] __kmalloc_reserve.isra.0+0x40/0xb0  
net/core/skbuff.c:138
     [<000000003bd62b3e>] __alloc_skb+0xa0/0x210 net/core/skbuff.c:206
     [<000000003813d44c>] alloc_skb include/linux/skbuff.h:1054 [inline]
     [<000000003813d44c>] sock_wmalloc+0x4f/0x80 net/core/sock.c:2071
     [<000000003f8b1014>] pppoe_sendmsg+0xd0/0x250  
drivers/net/ppp/pppoe.c:866
     [<000000003841750c>] sock_sendmsg_nosec net/socket.c:646 [inline]
     [<000000003841750c>] sock_sendmsg+0x54/0x70 net/socket.c:665
     [<00000000f75dab14>] ___sys_sendmsg+0x194/0x3c0 net/socket.c:2286
     [<000000004ca9b6e5>] __sys_sendmmsg+0xf4/0x270 net/socket.c:2381
     [<00000000e008d506>] __do_sys_sendmmsg net/socket.c:2410 [inline]
     [<00000000e008d506>] __se_sys_sendmmsg net/socket.c:2407 [inline]
     [<00000000e008d506>] __x64_sys_sendmmsg+0x28/0x30 net/socket.c:2407
     [<00000000f738b123>] do_syscall_64+0x76/0x1a0  
arch/x86/entry/common.c:301
     [<0000000081d80325>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff8881130b9e00 (size 224):
   comm "syz-executor057", pid 7184, jiffies 4294955399 (age 32.540s)
   hex dump (first 32 bytes):
     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
     00 00 00 00 00 00 00 00 00 08 58 13 81 88 ff ff  ..........X.....
   backtrace:
     [<0000000025f85882>] kmemleak_alloc_recursive  
include/linux/kmemleak.h:43 [inline]
     [<0000000025f85882>] slab_post_alloc_hook mm/slab.h:439 [inline]
     [<0000000025f85882>] slab_alloc_node mm/slab.c:3269 [inline]
     [<0000000025f85882>] kmem_cache_alloc_node+0x153/0x2a0 mm/slab.c:3579
     [<000000005b601dc8>] __alloc_skb+0x6e/0x210 net/core/skbuff.c:194
     [<000000003813d44c>] alloc_skb include/linux/skbuff.h:1054 [inline]
     [<000000003813d44c>] sock_wmalloc+0x4f/0x80 net/core/sock.c:2071
     [<000000003f8b1014>] pppoe_sendmsg+0xd0/0x250  
drivers/net/ppp/pppoe.c:866
     [<000000003841750c>] sock_sendmsg_nosec net/socket.c:646 [inline]
     [<000000003841750c>] sock_sendmsg+0x54/0x70 net/socket.c:665
     [<00000000f75dab14>] ___sys_sendmsg+0x194/0x3c0 net/socket.c:2286
     [<000000004ca9b6e5>] __sys_sendmmsg+0xf4/0x270 net/socket.c:2381
     [<00000000e008d506>] __do_sys_sendmmsg net/socket.c:2410 [inline]
     [<00000000e008d506>] __se_sys_sendmmsg net/socket.c:2407 [inline]
     [<00000000e008d506>] __x64_sys_sendmmsg+0x28/0x30 net/socket.c:2407
     [<00000000f738b123>] do_syscall_64+0x76/0x1a0  
arch/x86/entry/common.c:301
     [<0000000081d80325>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff8881131dcf00 (size 224):
   comm "syz-executor057", pid 7192, jiffies 4294955408 (age 32.450s)
   hex dump (first 32 bytes):
     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
     00 00 00 00 00 00 00 00 00 20 2d 13 81 88 ff ff  ......... -.....
   backtrace:
     [<0000000025f85882>] kmemleak_alloc_recursive  
include/linux/kmemleak.h:43 [inline]
     [<0000000025f85882>] slab_post_alloc_hook mm/slab.h:439 [inline]
     [<0000000025f85882>] slab_alloc_node mm/slab.c:3269 [inline]
     [<0000000025f85882>] kmem_cache_alloc_node+0x153/0x2a0 mm/slab.c:3579
     [<000000005b601dc8>] __alloc_skb+0x6e/0x210 net/core/skbuff.c:194
     [<000000003813d44c>] alloc_skb include/linux/skbuff.h:1054 [inline]
     [<000000003813d44c>] sock_wmalloc+0x4f/0x80 net/core/sock.c:2071
     [<000000003f8b1014>] pppoe_sendmsg+0xd0/0x250  
drivers/net/ppp/pppoe.c:866
     [<000000003841750c>] sock_sendmsg_nosec net/socket.c:646 [inline]
     [<000000003841750c>] sock_sendmsg+0x54/0x70 net/socket.c:665
     [<00000000f75dab14>] ___sys_sendmsg+0x194/0x3c0 net/socket.c:2286
     [<000000004ca9b6e5>] __sys_sendmmsg+0xf4/0x270 net/socket.c:2381
     [<00000000e008d506>] __do_sys_sendmmsg net/socket.c:2410 [inline]
     [<00000000e008d506>] __se_sys_sendmmsg net/socket.c:2407 [inline]
     [<00000000e008d506>] __x64_sys_sendmmsg+0x28/0x30 net/socket.c:2407
     [<00000000f738b123>] do_syscall_64+0x76/0x1a0  
arch/x86/entry/common.c:301
     [<0000000081d80325>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff888115942b00 (size 224):
   comm "syz-executor057", pid 7184, jiffies 4294955398 (age 32.610s)
   hex dump (first 32 bytes):
     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
     00 00 00 00 00 00 00 00 00 08 58 13 81 88 ff ff  ..........X.....
   backtrace:
     [<0000000025f85882>] kmemleak_alloc_recursive  
include/linux/kmemleak.h:43 [inline]
     [<0000000025f85882>] slab_post_alloc_hook mm/slab.h:439 [inline]
     [<0000000025f85882>] slab_alloc_node mm/slab.c:3269 [inline]
     [<0000000025f85882>] kmem_cache_alloc_node+0x153/0x2a0 mm/slab.c:3579
     [<000000005b601dc8>] __alloc_skb+0x6e/0x210 net/core/skbuff.c:194
     [<000000003813d44c>] alloc_skb include/linux/skbuff.h:1054 [inline]
     [<000000003813d44c>] sock_wmalloc+0x4f/0x80 net/core/sock.c:2071
     [<000000003f8b1014>] pppoe_sendmsg+0xd0/0x250  
drivers/net/ppp/pppoe.c:866
     [<000000003841750c>] sock_sendmsg_nosec net/socket.c:646 [inline]
     [<000000003841750c>] sock_sendmsg+0x54/0x70 net/socket.c:665
     [<00000000f75dab14>] ___sys_sendmsg+0x194/0x3c0 net/socket.c:2286
     [<000000004ca9b6e5>] __sys_sendmmsg+0xf4/0x270 net/socket.c:2381
     [<00000000e008d506>] __do_sys_sendmmsg net/socket.c:2410 [inline]
     [<00000000e008d506>] __se_sys_sendmmsg net/socket.c:2407 [inline]
     [<00000000e008d506>] __x64_sys_sendmmsg+0x28/0x30 net/socket.c:2407
     [<00000000f738b123>] do_syscall_64+0x76/0x1a0  
arch/x86/entry/common.c:301
     [<0000000081d80325>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff888113199800 (size 512):
   comm "syz-executor057", pid 7184, jiffies 4294955398 (age 32.610s)
   hex dump (first 32 bytes):
     00 00 aa aa aa aa aa 0a aa aa aa aa aa 0a 88 64  ...............d
     11 00 04 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
   backtrace:
     [<0000000059b95d3a>] kmemleak_alloc_recursive  
include/linux/kmemleak.h:43 [inline]
     [<0000000059b95d3a>] slab_post_alloc_hook mm/slab.h:439 [inline]
     [<0000000059b95d3a>] slab_alloc_node mm/slab.c:3269 [inline]
     [<0000000059b95d3a>] kmem_cache_alloc_node_trace+0x15b/0x2a0  
mm/slab.c:3597
     [<00000000fb30d91c>] __do_kmalloc_node mm/slab.c:3619 [inline]
     [<00000000fb30d91c>] __kmalloc_node_track_caller+0x38/0x50  
mm/slab.c:3634
     [<0000000021df94db>] __kmalloc_reserve.isra.0+0x40/0xb0  
net/core/skbuff.c:138
     [<000000003bd62b3e>] __alloc_skb+0xa0/0x210 net/core/skbuff.c:206
     [<000000003813d44c>] alloc_skb include/linux/skbuff.h:1054 [inline]
     [<000000003813d44c>] sock_wmalloc+0x4f/0x80 net/core/sock.c:2071
     [<000000003f8b1014>] pppoe_sendmsg+0xd0/0x250  
drivers/net/ppp/pppoe.c:866
     [<000000003841750c>] sock_sendmsg_nosec net/socket.c:646 [inline]
     [<000000003841750c>] sock_sendmsg+0x54/0x70 net/socket.c:665
     [<00000000f75dab14>] ___sys_sendmsg+0x194/0x3c0 net/socket.c:2286
     [<000000004ca9b6e5>] __sys_sendmmsg+0xf4/0x270 net/socket.c:2381
     [<00000000e008d506>] __do_sys_sendmmsg net/socket.c:2410 [inline]
     [<00000000e008d506>] __se_sys_sendmmsg net/socket.c:2407 [inline]
     [<00000000e008d506>] __x64_sys_sendmmsg+0x28/0x30 net/socket.c:2407
     [<00000000f738b123>] do_syscall_64+0x76/0x1a0  
arch/x86/entry/common.c:301
     [<0000000081d80325>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff8881130b9e00 (size 224):
   comm "syz-executor057", pid 7184, jiffies 4294955399 (age 32.600s)
   hex dump (first 32 bytes):
     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
     00 00 00 00 00 00 00 00 00 08 58 13 81 88 ff ff  ..........X.....
   backtrace:
     [<0000000025f85882>] kmemleak_alloc_recursive  
include/linux/kmemleak.h:43 [inline]
     [<0000000025f85882>] slab_post_alloc_hook mm/slab.h:439 [inline]
     [<0000000025f85882>] slab_alloc_node mm/slab.c:3269 [inline]
     [<0000000025f85882>] kmem_cache_alloc_node+0x153/0x2a0 mm/slab.c:3579
     [<000000005b601dc8>] __alloc_skb+0x6e/0x210 net/core/skbuff.c:194
     [<000000003813d44c>] alloc_skb include/linux/skbuff.h:1054 [inline]
     [<000000003813d44c>] sock_wmalloc+0x4f/0x80 net/core/sock.c:2071
     [<000000003f8b1014>] pppoe_sendmsg+0xd0/0x250  
drivers/net/ppp/pppoe.c:866
     [<000000003841750c>] sock_sendmsg_nosec net/socket.c:646 [inline]
     [<000000003841750c>] sock_sendmsg+0x54/0x70 net/socket.c:665
     [<00000000f75dab14>] ___sys_sendmsg+0x194/0x3c0 net/socket.c:2286
     [<000000004ca9b6e5>] __sys_sendmmsg+0xf4/0x270 net/socket.c:2381
     [<00000000e008d506>] __do_sys_sendmmsg net/socket.c:2410 [inline]
     [<00000000e008d506>] __se_sys_sendmmsg net/socket.c:2407 [inline]
     [<00000000e008d506>] __x64_sys_sendmmsg+0x28/0x30 net/socket.c:2407
     [<00000000f738b123>] do_syscall_64+0x76/0x1a0  
arch/x86/entry/common.c:301
     [<0000000081d80325>] entry_SYSCALL_64_after_hwframe+0x44/0xa9

BUG: memory leak
unreferenced object 0xffff8881131dcf00 (size 224):
   comm "syz-executor057", pid 7192, jiffies 4294955408 (age 32.510s)
   hex dump (first 32 bytes):
     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
     00 00 00 00 00 00 00 00 00 20 2d 13 81 88 ff ff  ......... -.....
   backtrace:
     [<0000000025f85882>] kmemleak_alloc_recursive  
include/linux/kmemleak.h:43 [inline]
     [<0000000025f85882>] slab_post_alloc_hook mm/slab.h:439 [inline]
     [<0000000025f85882>] slab_alloc_node mm/slab.c:3269 [inline]
     [<0000000025f85882>] kmem_cache_alloc_node+0x153/0x2a0 mm/slab.c:3579
     [<000000005b601dc8>] __alloc_skb+0x6e/0x210 net/core/skbuff.c:194
     [<000000003813d44c>] alloc_skb include/linux/skbuff.h:1054 [inline]
     [<000000003813d44c>] sock_wmalloc+0x4f/0x80 net/core/sock.c:2071
     [<000000003f8b1014>] pppoe_sendmsg+0xd0/0x250  
drivers/net/ppp/pppoe.c:866
     [<000000003841750c>] sock_sendmsg_nosec net/socket.c:646 [inline]
     [<000000003841750c>] sock_sendmsg+0x54/0x70 net/socket.c:665
     [<00000000f75dab14>] ___sys_sendmsg+0x194/0x3c0 net/socket.c:2286
     [<000000004ca9b6e5>] __sys_sendmmsg+0xf4/0x270 net/socket.c:2381
     [<00000000e008d506>] __do_sys_sendmmsg net/socket.c:2410 [inline]
     [<00000000e008d506>] __se_sys_sendmmsg net/socket.c:2407 [inline]
     [<00000000e008d506>] __x64_sys_sendmmsg+0x28/0x30 net/socket.c:2407
     [<00000000f738b123>] do_syscall_64+0x76/0x1a0  
arch/x86/entry/common.c:301
     [<0000000081d80325>] entry_SYSCALL_64_after_hwframe+0x44/0xa9